Plastering-machine.



- J. H. GOVERDILL.

PLASTERING MACHINE.

I APPLICATION FILED MAR. 19, 1913. L1. 03,2690 Patented July 14,1914

4 SHEBTBBHEET 1.

WITNESSES 7 WITNESSES f J. H. GGVERDILL. PLASTERING MACHINE. APPLICATION FILED MAB.. 19, 1913.

Patented July 14, 1914.

4 SHBETS-SHEET 2.

J. H. GOVERDILL.

PLASTERING MACHINE.

APPLICATION IILEDMAR. 19, 1913.

Patented July 14, 1914.

4 SHEETSSHEBT 3.

[NV/INTO]? 2 MM W 69/ A 14 [form J. H. GOVBRDILL.

PLASTERING MACHINE.

- APPLICATION FILED MAB..19, 1913.

1 1L8 269L Patented July 19m 4 SHEETS-SHEET 4.

I" a Zn [N VEN T OR lllhlllllED STATES? P @FFKQED JOSEPH: H. COVERDEL, OF INDIANAPQLIS, INDIANA.

rtasrnnrnanacnmn Specification of Letters ream.

Application filed March 1a, 1913. @erial lilo. 7555, 231.

dianapolis, in the county of Marion and State of Indiana, haveinvented certain new and useful Improvements in PlasteringMachines. of which the following is a specification. 1 1 This invention relates to improvements in plastering machines, and has primarily for its object the provision of such a machine arranged with a framework adapted to .be held rigidly in position and having associated therewith moving trowel mechanism adapted to apply and spread the plaster upon the wall or other structure as desired. A further object of the invention contemplates the provision of suitable mechanism whereby the plaster may be conveyed or removed from a source of plaster supply, lifted and dumped upon the trowel mechanism, and automatically applied and spread upon the wall or other structure to be acted u on. v

A still further object of the invention resides in the provision of novel and peculiar tri and in connection with the framework of the machine for automatically reversing the direction of travel of the trowel.

A further object of the invention is to provide means for actuating the conveyor mechanism, during the upward travel of the trowel for applying and spreading the plaster upon the wall, and for automatically stopping such mechanism during the reverse or downward travel of the trowel for only spreading and. not applying the plaster to the said wall.

The invention further resides in the provision of means for simultaneously operatingboth the conveyor and trowel mechanism from one and the same source of motive power, such means being so arranged as to allow movement 01E either independent of the other.

The above and additional objects are accomplished by such means as are illustrated in their preferred embodiment in the accompanying drawings, described in' the-following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

In describing my invention in detail reference will be had to the accompanying mechanism arranged conveniently upondrawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure l a side elevation of a machine constructed in accordance with my invention; Fig. 2 is a front elevation. Fig. 3 is a vertical sectional view. Fig. 4 is a top plan view. Fig.6 is a detail'elevation of the trowel su portin arm. Fig. 6 is a detail elevation 0 one o? the chain links having a projection formed thereupon. Fig. 7 is a detail perspective view of the trip mecha nism. Fig. 8 is an elevation of the reversing gears, and Fig. 9 is a detail elevation of one of the said gears.

Proceedin now to the description of the drawin s wherein is illustrated the preferred orm of my invention the numeral 1 designates a pair of vertically extending angle-irons, preferably U-shaped in cross section, to the lower extremity of which is secured base-irons 2, terminating in suitable framework 3, extending parallel with the irons 1 and connected thereto through the medium of an angularly disposed frame portion 4, thereby constituting the entire framework or supporting structure of the machine.

Secured to the angle-irons 1 and extending throughout the length thereof and projecting beyond the to edge I provide T- irons 5 having an ang e-1ron 6, U-shaped in 'cross section secured to the inner face thereof, the said angle-irons 6 adapted to support the trip mechanism, designated in its entirety by the numeral 7, a portion of the said trip mechanism fitting within a bulged portion 8 of the said T-iron 5, the detail con- Patented July re, ism.

struction of this particular feature being 1 hereinafter fully described.

A shaft 9 is jour'naled within suitable brackets 10 near the base of the vertically extending angle-irons 1, the said shaft having sprocket wheels 11 keyed or otherwise secured thereto near each end thereof, the said sprocket wheels being connected to similar wheels 12 loosely mounted upon a shaft 13 journaled within bearings 1d mounted upon the upper extremity of the?- iron 5, and connected through the medium of suitable chains 15. Une link 16 of the said chain 15 is provided with a laterally projecting pin 17 formed integrally with the said link and fittingwithin a recess 18 formed within a head 19 secured to or formed integrally with .a shank 20 of the trowel supporting means. The said shank suitable spiral sp tween the head 19 hill? limited b means of a pin 22 fitting within a slot 23 0 the said tubular member, the said pin projecting from one face of the said shank 20. The tubular member 21 is secured to the trowel blade 24 by means of a plate- 25, the said plate supporting the trowel blade in rigid relation to the said tubular member. To yieldably support ,the trowel blade and to allow'lateral movement of thepin 22, .a

'26 is interposed bethe-plate 25, thus sup- .po the trowel blade 24 as desired.

Eac end of the trowel blade is provided with a roller 27 mounted upon a suitable bracket 28 as is clearly shown in Figs. 1 and 3 of the drawings. One of the said rollers 27 is normally inclosed by the angleirons 6, the said angle-irons forming a track or rail upon and within which the roller runs or revolves. The spring controlled sup orting means of the trowel, as above descr' is likewise provided with a roller 29 which also rides upon and within a trackway formed by the angle-irons 6, the. roller 29 being spaced from the rear face of the trowel blade 24 a greater distance than the rollers 27 secured at each endthereof, therebysupporting the said blade at an angle in the track or e-wa 6 and causing either the upper or ower of the blade to engage the wall or other structure u on which the machine is applying plaster, t e tension of the spring 26 forcing the blade against the said structure at all times, causing the blade to spread theplaster in the desired manner. v

Smaller sprocket wheels 30 are secured to a sleeve 30' through which thesaid shaft 9 extends and are likewise connected tov rocket wheels 31 mounted upon the upper s aft 13 by -means of a second sprocketv chain 32, the said chain 32 having a plurality of conveyer receptacles or brackets 33 secured thereto at predetermined spaced apart points throughout the entire length. The sprocket wheel 30 is mounted within, and the shaft 9 extends across, a suitable hopper or plaster receptacle 34 rigidly mounted upon the frame base 2 for supplying the conveyer receptacles 33 with plaster as the same are conveyed by the travel of the chain 32 into the said receptacle. When filled with plaster the conveyer receptacles 33 are carried upwardly from the .lower sprocket wheel 30 and over the upper sprocket wheel 31 where they are tilted and finally dumped upon a suitable guide plate or slide 35 normally supported at an angle to the chain 32 b means of an expansion spring 36, one en of the spring on ging the said plate 35 whilethe other on is secured to a laterally extending brace 37, which forms a partof the framework of ceptacles 33-as the same'are brought into ing the parted to theother. By swinging the arm the machine. By the above arrangement it will j be seen that the conveyer receptacles 33 will empty or dmnp their contents upon the slide 35, the said slide guiding the material on' to the trowel blade 34, where it is applied and spread to the wall or other structure acted upon. The provision of the spring 36 will allow the guide 35 to recede during the downward movement of the reengagement therewith, and will in this manner no way interfere with .the travel'of the said receptacles according to the movement of. the chain 32 to whichthey are attached. Having described the operation of the conveyer, the detail construction of the means employed for controlling the move ment thereof will now be described. An arm 38 is pivotally mounted upon one end of the lower shaft 9 of the machine and extendsupwardly at an angle from the said pivot point and terminates ina head 39 having a slot 40 formed therein, the said slot limitivotal movement of the arm 38. A stud s aft 41is journaled within a suit-- able bearing 42 secured to the frame portion 3, the said shaft 41 extending through the said slot 40 and terminating at its outer end in a crank handle 43. A gear wheel 44 is keyed upon thesaid stud shaft 41 and rotated according to the movement of the I said shaft caused bythe turning of the handle 43. Another gear wheel 45 is secured upon a shaft 46 journaled within theal'm 38, while a third ear wheel 47 is secured upon a third sha 48.1ikewise journaled within the saidarm, the said gear wheels 45 and 47 meshing as is shown in Fig. 1 where bymovement of either of the wheels is im- 38 upon its pivot either of the gear wheels 45 or 47 maybe swung or brought into mesh with the gear wheel 44, thereby rotating the said gears according to the movement of the gear wheel 44. The shaft 46 upon which the gear wheel 45 ismounted has secured thereto at one end thereof a .suitable sprocket wheel 49 connected. to a s rocket wheel 50 through the medium of a c ain 51 for rotating the shaft 9 upon which the said Wheel 50 is mounted, according to the rotation of the shaft 46. The shaft 48 is likewise provided with a sprocket wheel 52 which is also connected to a suitable sprocket 53 by means of a chain 54, thereby rotating the sleeve 30, upon which the sprocket wheel 53 is mounted, according to the rotation of the said shaft 48. From the above construction it will be readily seen that the rotation of the shaft 41 will accordingly rotate theshaft 9 thereby operating the conveyer and the trowel mechanism above described. The sprocket wheel 53, driven by the shaft 48 through the medium of a chain 54, being rigid with the sler e 30',

till

the said sleeve is rotated, such rotation imparting movement to the conveyer chains 15 by means of the sprocket wheels .30 which are likewise secured to the said sleeve 30, while the sprocket wheel which is driven by the rotation of the shaft 46 will simultaneously rotate the shaft 9 of the machine,

rack 57 formed upon the saidshaft 48, thus it will be seen that the wheel 47 is rotated when the shaft 46 is turned in one direction while the said wheel a? will ride loosely upon the sliaft 48 during the turning of the shaft 46 in the opposite direction.

From the above description, it will be seen that the rotation of the wheel at will impart movement to the wheel 45 which will in turn operate the trowel mechanism of the machine while the rotation of the wheel 47 will 'operate the conveyer mechanism of the machine. By shifting the arm 38 through the manipulation of a suitable lever 58 pivoted as at 59 to the frame, the lower gear wheel 47 is brought into mesh with the wheel 44, thereby allowing the said wheel 47 to turn independently of the shaft 48 upon which it is mounted, thus operating the shaft 46 and the shaft 9 without rotating the sleeve 30, thereby operating the trowel chain 15 while the conveyer chain 32 is inoperative. This operation will permit the downward movement of the trowel mechanism throughout the length of the beams 5 upon which it is mounted without operating the conveyor mechanism for conveying or lifting the plaster from the receptacle 3% and applying the same to the wall. As the trowel mechanism reaches its uppermost point, the lever 58 is operated causing the conveyer mechanism to remain inoperative, and atthe same time shifting or reversing the movement of the trowel mechanism and allowing the some to travel downwardly and in engagement with the wall where it is again shifted upon reaching the lower extremity of the wall by again operating the lever :38. thereby causingthe conveyer mechanism to again operate for supplying plaster to the trowel during its u ward movement.

Proceeding now to the description of the trip mechanism. the same preferably comprises a [bl-shaped bracket 60, slidably mounted within the bulged portions 8 of the if-irons and upon the track beams 6. the said bracket 60 having ears 61 formed intogrally therewith for the purpose of pivotally mounting as at 62. a trigger arm 63. having a lug or projection or formed upon the inner end thereof, normally held in agement with the outer face of the bracket y means of a plate spring 65, secured as at 66 to the said bracket, at the up or end thereof. The vertical movement 0 the bracket 60, is limited by the walls, of the; bulged portion 8 of the T-iron 5. An opening 6? is formed within the outer face of the U-sha ed or track-beam 6 through which the rol ers 27 pass so as to retain one of the said rollers normally within the said track-way 8. The trig er mechanism 7, constructed in detail as a ove described is mounted adjacent the bulged portions 8 of the beams near the upper and lower extremities thereof to reverse the angle of the trowel blade 24 as the same is brought into engagement with the angular projections 68 of the track frame at the extremities thereof. The trowel mechanism when traveling along the track in an upward direction comes in contact w th the lower face of the bracket 60 causing the same to move upwardly so as to uncover the opening 67 of the track-way. When in such raised position, the upper roller 27 of the trowel is brought into engagement with the inclined portion 68 of the track-way causing the said trowel to swing upon the central roller 29 thereby forcing the lower roller 27 through the opening 67 "whereupon the lever 58 is operated for reversing the direction of travel of the said trowel thus causing the trowel to travel downwardly along the wall or other structure acted upon. After passing through the opening 67 the trip mechaninn will fall into its normal position and the upper portion of the trowel blade is free to pass over the trigger arm 63 by reason of the pivotal connectiou adorded therefor as at 62. Any suitable means such as a spring (not shown) may be employed for the purpose of returning the trigger mechanism 7 at the lower end of the beam. Frrma the above taken in connection with the accompanying drawings it will be seen that the reverse move ment of the trowel is entirely controlled by the manipulation of the lever 58; that during the upward travel of the trowel mechanism the conveyer mechanism is operated for supplying plaster to the said trowel and that by imparting reverse movement to the trowel mechanism, operation of the conveyor mechanismis instantaneously ceased thereby allowing the said trowel to travel downwardly throughout the length of the frame where it is again reversed and the conveyor mechanism again operated: and that the provision of rollers such as are shown at oil will permit transporting of the machine from place to place as desired.

it will be understood that the above description and accompanying drawings cone are and only the general and referred embodiment of my invention an that various lltl llilb minor changes in the details of construction,

" 'whatl proportion and arrangement of parts may be made within the scope of the a pended claims and'without sacrificing any 6 the advantages of my invention..

Having thus fully described my invention,

throng out the length thereof, means for. reversing the directionof travel of the said trowel m'echanism as it reaches the extremities of the. said frame, conveyer mechanism carried by said frame ada ted to feed the plaster on to the said trowe and means for ciprocatin stroke.

operating the trowel mechanism independent of th said conveyer mechanism.

2. A plastering machine including a trowel, means for movin said trowel, and means independent of t e said first mentioned means for automatically shifting the position of said trowel at predetermined points during its movement.

3. A plastering machine including a trowel, means for reciprocatin said trowel, and means independent of said first mentioned means for automatically shifting the position of said trowel at each end of its re 4. A p astering machine including a trowel, means for reciprocating said trowel, means normally maintaining said trowel at an angle to the surface acted upon,- and means automatically shifting the position of said trowel at each end of its reciprocating stroke. I

5. A plastering machine including a trowel, means for reciprocating said trowel, a guide therefor, trip mechanism arranged at each end of the said guide, said mechanism being engageable with the said trowel to automatically shift the osition thereof, as and for the purpose set orth.

6. A plastering machine including a reciprocable trowel blade, the said blade ada ted to be normally maintained at an ang e to the surface acted upon, guide means for the trowel. and tri mechanism arranged at the respective ends of the said guide means, the said trip mechanism being disposed for engagement with the said trowel to automatically shift the position of the latter at each end of its reciprocating stroke.

7. A plastering machine including a trowel, means for reciprocating said trowel, guide means therefor. trip mechanism arranged at each end of said ide, said trip mechanism being disposed in the ath of said trowel, means maintaining sai trowel at an angle to the'surface acted upon, and means carried bythe said guide anddisposed for engagement with said trowel to automatically shift the angular position of aim as new and desire to secure by 1,1os,see

the latter when engaged by said trip mechanism, as and for the purpose set forth.

8. A plastering .anaehine including a. trowel, means for reciprocatin the trowel, means maintaining said trowe atan' angle to the surface acted u on, means reversing thedirection of trave of said trowel, and trip mechanism automatically shifting the angular position of said trowel simultaneously with the actuation of said reversing means, as and for the pa ose set forth.

9. A plastering machine including a frame, trowel mechanism carried by said frame, means for reciprocating said mechanism, means for reversing the direction of travel of said mechanism, conveyor mechanism carried by said frame adapted to feed the plaster on to the said trowel mechanism, and means carried by said frame for operating said conveyor mechanism during the movement of the trowel in one direction only, as and for the purpose set forth.

10, A plastering machine including a trowel, means for reci rocating said trowel, conveyer mechanism or feeding plaster to said trowel, independent means automatically shifting the position of the trowel at each end of its reciprocating stroke, and means actuating said conveyer mechanism to operate the latter only through the movement of the trowel in one direction, as and for the p ose' set forth.

11. A p astering machine including a trowel, means for reciprocating said trowel, guide means therefor, trip mechanism carried by the said guide means and disposed for engagement with said trowel to automatica ly shift the position of the letter at each end of its reciprocating stroke, conveyer mechanism for feeding plaster to the said trowel, and means for operating the said conveyor mechanism only during the movement of the trowel in one direction, as and for the purpose set forth.

12. A plastering machine including a frame, mechanism including a trowel blade carried by said frame, means reei rocating said mechanism throughout the ength' of said frame, a guide for said mechanism, trip mechanism ositioned at the respective ends of said guide, said trip mechanismautomatically reversing the position of said trowel blade at each end of its reciprocating stroke, conveyer'mechanism carried by said frame, said mechanism automatically feeding the plaster on to the said trowel during its movement in one direction, and means for operating said conveyer mechanism and said trowel mechanism simultaneously from the same source of power, as and for the purpose set forth.

13. A plasterin machine including reciprocable trow mechanism, conveyer mechanism associated therewith, means for simultaneously actuating the said conveyer mechanism and the said trowel mechanismfrom the same source of power, and means whereby the said trowel mechanism is operated independent of the conveyor mechanism during its movement in one direction, as and for the purpose set forth.

14. A plastering machine including reciprocable trowel mechanism including a trowel blade, conveyor mechanism associated therewith, guide means positioned over said blade for conveying the plaster acted upon thereontqmeans for actuating said trowel mechanism and said conveyer mechanism simultaneously from the same source of power, and means whereby said trowel. mec anism may he moved independent of said conve'ye'r' mechanism during one of the reciprocative strokes of the former, as and for the purpose'set forth.

15. A plastering machine including a re ciprocable trowel, guide means therefor, tri mechanism arranged at the respective en s of the said guide means and disposed for engagement with the said trowel to automatill? ic-ally shift the position of the letter at each end of its reciprocative stroke, conveyormechanism operable in' connection with the said trowel, means for simultaneously actuating thesaid conveyer and the said trowel and means for moving said trowel independent of the conveyor mechanism during one of the reciprocative strokes of the former, as-and for the purpose set forth.

16. A plastering machine including a frame, reciprocable trowel mechanism carried b said frame adapted to travel throng iout the length thereof, guide means for the said trowel mechanism, trip mechanism arranged at the respective end of the said guide means and disposed in the path of the saidtrowel mechanism to automatically shift the position of the latter at each end of its reciprocative stroke, means for reversing the direction of travel of the trowel mechanism as itreaches the extremity of the said frame, conveyer mechanism carried by said frame adapted to feed the plaster on to the said trowel'and means for operating the trowel mechanism independent of the said conveyer mechanism during one of the reciprocative strokes of the former, as and for the purpose set forth.

17 A plastering machine including frame, a reciprocable" trowel mechanism including a trowel blade carried by said frame, conveyor mechanism operable in con-.

nection with said trowel'mechanism, means for simultaneously operating the said trowel mechanism and the said conveyer mechanism, and means including aspring actuated guide member positioned at one end of the said conveyor mechanism, the said guide member being disposed for engagement therewith to guide the plaster acted uipon on to the trowel blade during one of its reciprocative strokes, as and for the purpose set forth.

18. A plasterin machine inclnding a frame, reciprocal) e trowel mechanism inclnding a trowel hlade carried by said frame, eonveyer mechanism operahle from the same source of otter as-the said trowel mechanlsr'n, means or operating said trowel mechanism during one of its reciprocative strokes independent of the said conveyer mechanism, a spring actuated guide member arranged at one end of said conveyer mechanism, the said gnide memher heing positioned above the said trowel mechanism to guide the plaster acted upon or! to the said blade, as and for the purpose set forth.

19. A. plastering machine including reciprccahle trowel mechanism including a trewel blade, guide means therefor, trip mechanism disposed at the respective ends of the said guide means in the piath of the said trowel blade for shifting t e position? of the latter at each end of its reciprocatire stroke, conveyer mechanism operahle in connection with the said trowei mechanism, means actuating the said trowel mechanism and the said conveyer mechanism from one and the same source of. power, means oper-' ating the said trowel mechandsmduring one of its reciprocative strokes independent of the said conveyer mechanism, and means includin a spring actuated guide member arran e at one end of the mid conveyer In'c 'anism and above the said trowe mechanism for gui the plaster acted upon on to the trowel lads, as and for the purpose set forth.

20. In a plastering machine, the combination with a trowel and means for reciproeating said trowel, guide means therefor, a

support member arranged at. each end of the said guide means, a trip arm pivoted to the said support, the said trip arm being disposed for engagement with the said trowel during its reciprocatingmovement, means arranged at each end of the said guide for automatically shifting the pos'i-- tion of the said trowel, the said trip arm adapted to be actuated simultaneously with the shifting of the said trowel, as and for the purpose set forth.

21. in a plastering machine, the combination with a trowel and queens for reciproeating the said trowel, guide rails therefor, a support member arranged at each end of said guide rails, a trip arm pivoted to said support, said trip arm heing disposed for engagement with the said trowel during its reciprocating movement, an angular exten: sion formed upon each rail at their respec-. tive' ends, the said extensions heing engaged by the said trowelfor automatically shifting the position of the same, the said trip arm adapted to he actuated simultiifioiisly with the shifting of the said trowel, asand for the purpose set forth.

In a plastering machine, the combina: tion with a trowel and means for reciprocating said trowel, guide rails therefor, each rail being enlarged at one end thereof, the

said rails being cut away adjacent each enlargement,"a sliding support member arranged within the enlarged portion of each rail a spring pressed trip arm pivoted to sai support, the said trip arm being dis-- posed in the path of the said trowel, thesaid support being disposed to normally" close the opening formed. bythe said cut away portion of the rail, an angular extension formed at each end of said rails, the

said extensions being disposed for engage-' ment with the said trowel mechanism to-au tomatically shift the position of the latter at each end of the reciprocating stroke, a

portion of the said trowel adapted to passthrough the said openings when uncovered by the movement of the said trip mechanism, asand for the purpose set forth.

23. In a plastering machine, the combinationjwith a trowel and means for recipro' eating said trowel, conveyor mechanism associated therewith, a spring actuated ide member arranged at one end of the sail conveyer mechanism, the said guide member being normally maintained at an angle to the vertical axis of the said conveyor mecharism, oneend of thesaid guide member being disposed in the path of the said conveyor,

the said guide mcmberbeing disposed above the said trowel mechanism, to guide the plaster acted upon from the said conveyor on to the said trowel, as and for the purpose set forth.

24. In a plastering machine, the combination with a trowel, means for reciprocating said trowel, conveyor mechanism operab e in connection therewith, an endless ele-'- ment to which the said trowel is secured,

and means for shifting the direction of travel of said element at each. end of the reciprocating stroke of the trowel, as and for the purpose set forth.

- sleeve, an endless element to which the. stem is connected, and spring means interposed between the said blade and the said element to form a cushion support for the former, as and for the purpose set forth,

adapted to fit an opening provided therefor within said head, and a spring arranged to.

embrace said sleeve and to engage the said trowel and the said head to provide a cushion support for the former, as and for the purpose set forth.

28. In a'plastering machine, the combination with a trowel and means for reciprothe said trowel, a

eating said trowel, a guide rail therefor,

rollers carried by the said trowel, one of thesaid rollers, being at all times disposed for engagement with the said rail, and trip means carried by the said rail and disposed for engagement with the said trowel to antomatically shift the position of the latter to bring one or the other of the rollers into or out of engagement with the said rail, as and for the purpose set forth.

29. In a plastering machine, the combination with a trowel and means for reciprocating said trowel, guide means therefor, a roller carried by the said trowel adapted to be at all times disposed for-engagement with the said guide means, other rollers carried by the said trowel, the said rollers being disposed at the end thereof, trip mechanism arranged at the respective ends of the said guide means and disposed for engagement with the said trowel to shift the position of the latter at each end of its reciprocative stroke, the said last mentioned rollers adapted to besw'ung either into or out of engagement with the rails to maintain the said trowel at an angle thereto during the engagement between the said trowel and the said trip mechanism, as and for the purpose set forth.

I 30. In a plastering machine, the combination with a portable frame, a trowel carried thereby, means for reciprocating said trowel,

a conveyer associated with the said trowel,

'a pivoted arm supported by the said frame, and means carried by the said arm for actuating the said trowel and the said conveyer simultaneously or the said trowel independent of the said conveyor, as and for the purpose set forth.

31. In a plastering machine, the combination with a portable frame, a trowel carried by the said frame, means for reciprocating said trowel, an endless conveyer carried by the said frame, an endless element to which the said trowel is connected, an operating shaft to which the said endless conveyer is arranged, a sleeve carried by the said conveyer over which the said endless element is arranged, an arm pivoted to the said shaft,

thereof, rollers carried by said trowel mechanism adapted to fit within said track-way, one of said rollers being spaced from the trowel blade for dispo ing the same at an angle to thesaid track and an angle plate formed upon the extremities of the said track, of trip mechanism slidably mounted upon the said track for normally closing an opening formed therein, a bulged portion formed adjacent'the said track for limiting the sliding movement of the said trip mechanism, means-for reciprocating the trowel mechanism, the angle of the said trowel blade adapted to be reversed as it is brought into engagement with the said trip mechanism for allowing the same to travel in one direction at an angle opposite to that assumed when traveling in the other direction.

40. In a plastering machine the combination of a frame, vertically extending tracks supportedby said frame, trowel mechanism including a trowel blade reciprocably mounted and adapted to travel throughout the length-of said track-ways, a plurality 0f rollers carried by said trowel mechanism, certain of which are adapted to fit within the said track-way for disposing the trowel blade at an angle thereto, angle plates formed integrally with and upon the extremities of the track-way-for reversing the position of the-trowel blade as the trowel mechanism moves into engagement therewith, a

bracket slidably mounted upon the trackway, the movement of the said bracket being limited by a bulgedportion formed within the said frame, the said bracket adapted to normally close an opening formed within the said track-way, a spring controlled trigger arm pivotally mounted to the said bracket, the said trowel mechanism adapted to raise the said bracket, the said trowel at the same time engaging the said angular simultaneously plate for reversing the position of the blade and forcing one of the rollers through the said opening of the track-way, and means for reciprocating the trowel mechanism throughout the length of the track-way as and for the purpose set forth.

41. In a plastering machine, the combination of reciprocable trowel mechanism including a trowel blade adapted to travel vertically throughout the len h of the machine, means for reversin t e position of the blade upon reaching t e extremities of the machine, conveyer mechanism carried by the machine for feeding plaster on to the trowel during upward travel thereof, a plaster receptacle carried by the machine for supplying the conveyer mechanism with plaster as it travels therethrough and means including a plurality of gears carried by the machine and connected to both the trowel and conveyor mechanism for operating them or the trowel mechanism independent of the conveyer.

- 42 combination with a plastering machine,'a frame having a track-way extending throughout the length thereof, vertically reciprocable trowel mechanism including a trowel blade supported by said track-way, trip mechanism carried by said track-way for reversing the position of the trowel asv the same on to the trowel during the upward travel thereof, means for guiding the plaster on to the trowel and means carried by the frame for operating the trowel mechanism independent of the conveyer for allowing the said trowel to travel while the conveyer is inoperative.

' 43. In combination with a plastering machine, a frame, vertical! extending trackways carried by said amc, reciprocable trowelme'chanism including a trowel blade adapted to travel throughout the length of said track-ways, means for reversing the position of the trowel at the extremities of the said track'- ways and means extending throughout the length of the track-ways for reciprocating the said trowel mechanism, of a plaster receptacle, conveyer mechanism ex tending throughout the length of the trackways adapted to convey plaster from the said receptacle on to the'trowel mechanism during the upwardtravel thereof, of s ring controlled means for guidin the p aster from the said conveyer on to t e said trowel and means including a plurality of gears mounted upon said frame for simultaneously operating both the conveyor and trowel mechanism and for operating the trowel mechanism independent of the conveyer to allow downward travel of the trowel while the conveyer is inoperative. 1

44. In combination with a plastering machine, vertically extending track-ways carried by said machine, reciprocable trowel mechanism including a trowel blade mounted u on said track-ways and adapted to trave throughout the ,length thereof, trip mechanism at each end of the said trackways for reversing the ition of the trowel as the same is broug t into engagement therewith, and means including chain and sprocket mechanism for reciprocating the said trowel, of a plaster-receptacle supported upon the base of the machine, an endless conveyer mounted upon the frame and 4 extending throughout the length thereof, the

said conveyer adapted to convey plaster from the said receptacle to the top of the machine where it is dumped on to the said trowel mechanism, a s ring controlled guideplate sup orted by e machine for guidmg the p ester during the dumping operamoaaee gears mounted upon the machine for simulsaid gears into mesh with the said stationtaneously operating both the trowel and conveyer mechanism orthe trowel mechanism independent of the conveyer during the downward travel of the said trowel.

4E5. In a plastering machine, the combination of reciprocable trowel mechanism including a trowel blade, an endless conveyer carried by the machine and means for reversing the position of the. trowel at each end of the machine,'of an arm pivotally connected to the machine, a stationary gear mounted upon the machine-and a pair of gears mounted upon the pivoted arm adapted to be swung so as to bring one of the ary gear for operating the said trowel and conveyer mechanism simultaneously or the said trowel mechanism independent of the said conveyer mechanism.

46. In a plastering machine, the combination of a frame, vertically extending trackways carried by said frame, reciprocable trowel mechanism. including a trowel blade carried by said track adapted to travel throughout the length thereof, trip mecha nism mounted upon each end of the trackway for reversing the position of the trowel as the same is brought into engagement therewith, chain and sprocket mechanism for reciprocating the trowel, and-means for attaching the said trowel mechanism to the said chain and sprocket mechanism, of a plaster receptaclemounted upon the base ofv the machine, anendless conveyer extending throughout the length of the machine for I conveying plaster from within the receptacle on to the said trowel mechanism during the upward movement thereof, a spring controlled guide-plate for guiding the plasteron to the trowel mechanism after leaving the conveyer, an arm pivotally mounted upon the frame, a stationary gear mounted upon the frame, the said gear being con-v nected to the said pivoted arm, a pair of gears mounted upon the said am, and means including a pivoted lever carried by said arm for swinging the same so as to bring one of the said gears into mesh with the said stationary gear for operating the trowel and conveyer mechanism or for operating the trowel mechanism in a downward direction independent of the conveyer mechanism.

47. A plastering machine including a trowel, an endless element upon which the said trowel is mounted for movement, and means shifting the position of said trowel relative to said element, as and for the purpose set forth.

48. A plastering machine including a trowel, an endless element upon which the trowel is mounted, means for operating said element, means normally maintaining said trowel at an angle to the surface acted upon, and means automatically shifting the posi: tion of said trowel relative to said element, as and for the purpose set forth.

49. A plastering machine including a trowel, an endless element to which the trowel is connected, means actuating said element, means for reversing the direction of travel of said element at redetermincd intervals,-and means for shiftlng the trowel relative to said elementsimultaneously with the reversing operation, as and for the purpose set forth.

I 50. A plastering machine including a trowel, an endless element to which the trowel is connected, means for operating said element, means for reversing the direction of travel of said element whereby to impart to said trowel areciprocatory movement, and trip mechanism engageable with said trowel 'at each end of its reciprocating stroke to shift the said trowel relative to said element, as and for the purpose set forth.

In testimony whereof I afix my signature in presence of two witnesses. v

JOSEPH H. OOVERDILL. Witnesses:

JOHN A. FINLEY, HARRY BAn'rnL. 

